Saw-jointing machine



(No Model.)

E. HOLDERMAN.

Y SAW JOINTING MACHINE.

Patented May 30, 1882.

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WITNESSEg N. PETERS. Pnnwmlw m hu, Washlngtu E '1 a/W// 1f INVENTOR ATTORN EYS n. O. C.

UNITED STATES PATENT OFFICE.

EDMUND HOLDERMAN, OF NORTH MANCHESTER, INDIANA.

SAW-JOINTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 258,755, dated May 30, 1882.

Application filed February 13, 1882. (No model.)

To all whom it may concern.-

Be it known that I, EDMUND HOLDERMAN, a citizen of the United States, a resident of North Manchester, in the county of Wabash and State of Indiana, have invented a new and valuable Improvementin Saw Gages and Files; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a perspective view of my improved gage, and Fig. 2 is a perspective view of the file. Fig. 3 is a side view of the file.

This invention has relation to saw gages and files; and it consists in the novel construction and arrangement of parts, hereinafter fully described, and particularly pointed out in the claims.

In the accompanying drawings, the letter a designates a steel bar or hearing, at one end of which is a file, b, the face 0 of which is set at a slight angle to the plane of the bearinga, as indicated by the dotted line a". w.

d represents the handle, to which the file is connected by means of a screw, 0, or other common fastening.

9 indicates the check-gage which is used in connection with this file. The gage is a piece of wood having a transverse bar, h, of metal let into its face, as shown, the projecting portion of the bar being sufficient to catch the teeth of the saw when brought against the same, but yet not deep enough to extend above the points of the uppermost row of teeth..

Graduating-marks lc, parallel to the bar h, are made on body 9, and a check, slotted at l,is arranged to slide overthese marks. When adjusted at the proper distance from the toothbar h the check-slide It is secured in position by means of clamp-screw m. fis the flange of the gage-slide.

In operating the side file the following directions are to be observed: Place the saw across the gage-bearin g g, with its under teeth against the transverse bar h. Adjust the check-slide k by moving it toward the bar it for greater set, and from the bar for less set. Hold the saw firmly against the bar with one hand and with the other operate the side file across the saw from base to point of tooth, keeping the handle part firmly on the saw. Operate until the file ceases to act upon the teeth. The file is operated back and forth across the teeth, its movement in one direction being checked by the flangefot' the slide, and should not be inclined endwise or sidewise. The teeth on both sides of the saw are to be dressed without changing the adjustment of the slide, and every tooth will be reduced to exactly the same set. At the same time the wire-edge will be removed by the action of the file on the teeth, and the points of the teeth will be brought out clear and sharp.

It will be observed that the farther the side file extends over the point of the tooth the more set will be removed.

At the heel of the handle or check-hearing of the file is arranged a set-screw, 2, which may be set up to project a little from the checkbearing when the angular dress required is less than that provided for in the file itself. This set-screw is designed to be used when tenon and other fine saws are to be dressed.

In filing swage-tooth circular saws, let the tooth-bar rest against the points of the two teeth at the sides of the one to be filed and operate the file nearly in line of the base and point of the tooth to be filed.

A saw-file having its blade setat a slight angle to the hearing which is designed to work against the side of the saw is not new, and is not broadly claimed herein.

Having described this invention, what I claim, and desire to secure by Letters Patent, 1s-

1. In a saw-file having the filing-blade b and bearing a, the handle dand heel set-screw z, substantially as specified.

2. The combination, with a side file for saws having its filing-blade I) set at a slight angle to its bearing a, of the check-gage g, its toothhar h, and gage-slide k, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

EDMUND HOLD ERMAN.

Witnesses:

JOSEPH B. HAR'IER, J AcoB HARTE a. 

